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Remove the REMOTE dimension from the nested matrix. [skip appveyor]
[tcpdump] / print-forces.c
1 /*
2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that: (1) source code
4 * distributions retain the above copyright notice and this paragraph
5 * in its entirety, and (2) distributions including binary code include
6 * the above copyright notice and this paragraph in its entirety in
7 * the documentation or other materials provided with the distribution.
8 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
9 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
10 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
11 * FOR A PARTICULAR PURPOSE.
12 *
13 * Copyright (c) 2009 Mojatatu Networks, Inc
14 *
15 */
16
17 /* \summary: Forwarding and Control Element Separation (ForCES) Protocol printer */
18
19 /* specification: RFC 5810 */
20
21 #ifdef HAVE_CONFIG_H
22 #include <config.h>
23 #endif
24
25 #include "netdissect-stdinc.h"
26
27 #define ND_LONGJMP_FROM_TCHECK
28 #include "netdissect.h"
29 #include "extract.h"
30
31
32 #define ForCES_VERS 1
33 #define ForCES_HDRL 24
34 #define ForCES_ALNL 4U
35 #define TLV_HDRL 4
36 #define ILV_HDRL 8
37
38 #define TOM_RSVD 0x0
39 #define TOM_ASSNSETUP 0x1
40 #define TOM_ASSNTEARD 0x2
41 #define TOM_CONFIG 0x3
42 #define TOM_QUERY 0x4
43 #define TOM_EVENTNOT 0x5
44 #define TOM_PKTREDIR 0x6
45 #define TOM_HEARTBT 0x0F
46 #define TOM_ASSNSETREP 0x11
47 #define TOM_CONFIGREP 0x13
48 #define TOM_QUERYREP 0x14
49
50 /*
51 * tom_h Flags: resv1(8b):maxtlvs(4b):resv2(2b):mintlv(2b)
52 */
53 #define ZERO_TTLV 0x01
54 #define ZERO_MORE_TTLV 0x02
55 #define ONE_MORE_TTLV 0x04
56 #define ZERO_TLV 0x00
57 #define ONE_TLV 0x10
58 #define TWO_TLV 0x20
59 #define MAX_TLV 0xF0
60
61 #define TTLV_T1 (ONE_MORE_TTLV|ONE_TLV)
62 #define TTLV_T2 (ONE_MORE_TTLV|MAX_TLV)
63
64 struct tom_h {
65 uint32_t v;
66 uint16_t flags;
67 uint16_t op_msk;
68 const char *s;
69 int (*print) (netdissect_options *ndo, const u_char * pptr, u_int len,
70 uint16_t op_msk, int indent);
71 };
72
73 enum {
74 TOM_RSV_I,
75 TOM_ASS_I,
76 TOM_AST_I,
77 TOM_CFG_I,
78 TOM_QRY_I,
79 TOM_EVN_I,
80 TOM_RED_I,
81 TOM_HBT_I,
82 TOM_ASR_I,
83 TOM_CNR_I,
84 TOM_QRR_I,
85 _TOM_RSV_MAX
86 };
87 #define TOM_MAX_IND (_TOM_RSV_MAX - 1)
88
89 static int
90 tom_valid(uint8_t tom)
91 {
92 if (tom > 0) {
93 if (tom >= 0x7 && tom <= 0xe)
94 return 0;
95 if (tom == 0x10)
96 return 0;
97 if (tom > 0x14)
98 return 0;
99 return 1;
100 } else
101 return 0;
102 }
103
104 static const char *
105 ForCES_node(uint32_t node)
106 {
107 if (node <= 0x3FFFFFFF)
108 return "FE";
109 if (node >= 0x40000000 && node <= 0x7FFFFFFF)
110 return "CE";
111 if (node >= 0xC0000000 && node <= 0xFFFFFFEF)
112 return "AllMulticast";
113 if (node == 0xFFFFFFFD)
114 return "AllCEsBroadcast";
115 if (node == 0xFFFFFFFE)
116 return "AllFEsBroadcast";
117 if (node == 0xFFFFFFFF)
118 return "AllBroadcast";
119
120 return "ForCESreserved";
121
122 }
123
124 static const struct tok ForCES_ACKs[] = {
125 {0x0, "NoACK"},
126 {0x1, "SuccessACK"},
127 {0x2, "FailureACK"},
128 {0x3, "AlwaysACK"},
129 {0, NULL}
130 };
131
132 static const struct tok ForCES_EMs[] = {
133 {0x0, "EMReserved"},
134 {0x1, "execute-all-or-none"},
135 {0x2, "execute-until-failure"},
136 {0x3, "continue-execute-on-failure"},
137 {0, NULL}
138 };
139
140 static const struct tok ForCES_ATs[] = {
141 {0x0, "Standalone"},
142 {0x1, "2PCtransaction"},
143 {0, NULL}
144 };
145
146 static const struct tok ForCES_TPs[] = {
147 {0x0, "StartofTransaction"},
148 {0x1, "MiddleofTransaction"},
149 {0x2, "EndofTransaction"},
150 {0x3, "abort"},
151 {0, NULL}
152 };
153
154 /*
155 * Structure of forces header, naked of TLVs.
156 */
157 struct forcesh {
158 nd_uint8_t fm_vrsvd; /* version and reserved */
159 #define ForCES_V(forcesh) (GET_U_1((forcesh)->fm_vrsvd) >> 4)
160 nd_uint8_t fm_tom; /* type of message */
161 nd_uint16_t fm_len; /* total length * 4 bytes */
162 #define ForCES_BLN(forcesh) ((uint32_t)(GET_BE_U_2((forcesh)->fm_len) << 2))
163 nd_uint32_t fm_sid; /* Source ID */
164 #define ForCES_SID(forcesh) GET_BE_U_4((forcesh)->fm_sid)
165 nd_uint32_t fm_did; /* Destination ID */
166 #define ForCES_DID(forcesh) GET_BE_U_4((forcesh)->fm_did)
167 nd_uint8_t fm_cor[8]; /* correlator */
168 nd_uint32_t fm_flags; /* flags */
169 #define ForCES_ACK(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0xC0000000) >> 30)
170 #define ForCES_PRI(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x38000000) >> 27)
171 #define ForCES_RS1(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x07000000) >> 24)
172 #define ForCES_EM(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x00C00000) >> 22)
173 #define ForCES_AT(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x00200000) >> 21)
174 #define ForCES_TP(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x00180000) >> 19)
175 #define ForCES_RS2(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x0007FFFF) >> 0)
176 };
177
178 #define ForCES_HLN_VALID(fhl,tlen) ((tlen) >= ForCES_HDRL && \
179 (fhl) >= ForCES_HDRL && \
180 (fhl) == (tlen))
181
182 #define F_LFB_RSVD 0x0
183 #define F_LFB_FEO 0x1
184 #define F_LFB_FEPO 0x2
185 static const struct tok ForCES_LFBs[] = {
186 {F_LFB_RSVD, "Invalid TLV"},
187 {F_LFB_FEO, "FEObj LFB"},
188 {F_LFB_FEPO, "FEProtoObj LFB"},
189 {0, NULL}
190 };
191
192 /* this is defined in RFC5810 section A.2 */
193 /* https://www.iana.org/assignments/forces/forces.xhtml#oper-tlv-types */
194 enum {
195 F_OP_RSV = 0,
196 F_OP_SET = 1,
197 F_OP_SETPROP = 2,
198 F_OP_SETRESP = 3,
199 F_OP_SETPRESP = 4,
200 F_OP_DEL = 5,
201 F_OP_DELRESP = 6,
202 F_OP_GET = 7,
203 F_OP_GETPROP = 8,
204 F_OP_GETRESP = 9,
205 F_OP_GETPRESP = 10,
206 F_OP_REPORT = 11,
207 F_OP_COMMIT = 12,
208 F_OP_RCOMMIT = 13,
209 F_OP_RTRCOMP = 14,
210 _F_OP_MAX
211 };
212 #define F_OP_MAX (_F_OP_MAX - 1)
213
214 enum {
215 B_OP_SET = 1 << (F_OP_SET - 1),
216 B_OP_SETPROP = 1 << (F_OP_SETPROP - 1),
217 B_OP_SETRESP = 1 << (F_OP_SETRESP - 1),
218 B_OP_SETPRESP = 1 << (F_OP_SETPRESP - 1),
219 B_OP_DEL = 1 << (F_OP_DEL - 1),
220 B_OP_DELRESP = 1 << (F_OP_DELRESP - 1),
221 B_OP_GET = 1 << (F_OP_GET - 1),
222 B_OP_GETPROP = 1 << (F_OP_GETPROP - 1),
223 B_OP_GETRESP = 1 << (F_OP_GETRESP - 1),
224 B_OP_GETPRESP = 1 << (F_OP_GETPRESP - 1),
225 B_OP_REPORT = 1 << (F_OP_REPORT - 1),
226 B_OP_COMMIT = 1 << (F_OP_COMMIT - 1),
227 B_OP_RCOMMIT = 1 << (F_OP_RCOMMIT - 1),
228 B_OP_RTRCOMP = 1 << (F_OP_RTRCOMP - 1)
229 };
230
231 struct optlv_h {
232 uint16_t flags;
233 uint16_t op_msk;
234 const char *s;
235 int (*print) (netdissect_options *ndo, const u_char * pptr, u_int len,
236 uint16_t op_msk, int indent);
237 };
238
239 static int genoptlv_print(netdissect_options *, const u_char * pptr, u_int len,
240 uint16_t op_msk, int indent);
241 static int recpdoptlv_print(netdissect_options *, const u_char * pptr, u_int len,
242 uint16_t op_msk, int indent);
243 static int invoptlv_print(netdissect_options *, const u_char * pptr, u_int len,
244 uint16_t op_msk, int indent);
245
246 #define OP_MIN_SIZ 8
247 struct pathdata_h {
248 nd_uint16_t pflags;
249 nd_uint16_t pIDcnt;
250 };
251
252 #define B_FULLD 0x1
253 #define B_SPARD 0x2
254 #define B_RESTV 0x4
255 #define B_KEYIN 0x8
256 #define B_APPND 0x10
257 #define B_TRNG 0x20
258
259 static const struct optlv_h OPTLV_msg[F_OP_MAX + 1] = {
260 /* F_OP_RSV */ {ZERO_TTLV, 0, "Invalid OPTLV", invoptlv_print},
261 /* F_OP_SET */ {TTLV_T2, B_FULLD | B_SPARD, " Set", recpdoptlv_print},
262 /* F_OP_SETPROP */
263 {TTLV_T2, B_FULLD | B_SPARD, " SetProp", recpdoptlv_print},
264 /* F_OP_SETRESP */ {TTLV_T2, B_RESTV, " SetResp", recpdoptlv_print},
265 /* F_OP_SETPRESP */ {TTLV_T2, B_RESTV, " SetPropResp", recpdoptlv_print},
266 /* F_OP_DEL */ {ZERO_TTLV, 0, " Del", recpdoptlv_print},
267 /* F_OP_DELRESP */ {TTLV_T2, B_RESTV, " DelResp", recpdoptlv_print},
268 /* F_OP_GET */ {ZERO_TTLV, 0, " Get", recpdoptlv_print},
269 /* F_OP_GETPROP */ {ZERO_TTLV, 0, " GetProp", recpdoptlv_print},
270 /* F_OP_GETRESP */
271 {TTLV_T2, B_FULLD | B_SPARD | B_RESTV, " GetResp", recpdoptlv_print},
272 /* F_OP_GETPRESP */
273 {TTLV_T2, B_FULLD | B_RESTV, " GetPropResp", recpdoptlv_print},
274 /* F_OP_REPORT */
275 {TTLV_T2, B_FULLD | B_SPARD, " Report", recpdoptlv_print},
276 /* F_OP_COMMIT */ {ZERO_TTLV, 0, " Commit", NULL},
277 /* F_OP_RCOMMIT */ {TTLV_T1, B_RESTV, " RCommit", genoptlv_print},
278 /* F_OP_RTRCOMP */ {ZERO_TTLV, 0, " RTRCOMP", NULL},
279 };
280
281 static const struct optlv_h *
282 get_forces_optlv_h(uint16_t opt)
283 {
284 if (opt > F_OP_MAX || opt == F_OP_RSV)
285 return &OPTLV_msg[F_OP_RSV];
286
287 return &OPTLV_msg[opt];
288 }
289
290 #define IND_SIZE 256
291 #define IND_CHR ' '
292 #define IND_PREF '\n'
293 #define IND_SUF 0x0
294 static char ind_buf[IND_SIZE];
295
296 static char *
297 indent_pr(int indent, int nlpref)
298 {
299 int i = 0;
300 char *r = ind_buf;
301
302 if (indent > (IND_SIZE - 1))
303 indent = IND_SIZE - 1;
304
305 if (nlpref) {
306 r[i] = IND_PREF;
307 i++;
308 indent--;
309 }
310
311 while (--indent >= 0)
312 r[i++] = IND_CHR;
313
314 r[i] = IND_SUF;
315 return r;
316 }
317
318 static int
319 op_valid(uint16_t op, uint16_t mask)
320 {
321 if (op == 0)
322 return 0;
323 if (op <= F_OP_MAX)
324 return (1 << (op - 1)) & mask; /* works only for 0x0001 through 0x0010 */
325 /* I guess we should allow vendor operations? */
326 if (op >= 0x8000)
327 return 1;
328 return 0;
329 }
330
331 #define F_TLV_RSVD 0x0000
332 #define F_TLV_REDR 0x0001
333 #define F_TLV_ASRS 0x0010
334 #define F_TLV_ASRT 0x0011
335 #define F_TLV_LFBS 0x1000
336 #define F_TLV_PDAT 0x0110
337 #define F_TLV_KEYI 0x0111
338 #define F_TLV_FULD 0x0112
339 #define F_TLV_SPAD 0x0113
340 #define F_TLV_REST 0x0114
341 #define F_TLV_METD 0x0115
342 #define F_TLV_REDD 0x0116
343 #define F_TLV_TRNG 0x0117
344
345
346 #define F_TLV_VNST 0x8000
347
348 static const struct tok ForCES_TLV[] = {
349 {F_TLV_RSVD, "Invalid TLV"},
350 {F_TLV_REDR, "REDIRECT TLV"},
351 {F_TLV_ASRS, "ASResult TLV"},
352 {F_TLV_ASRT, "ASTreason TLV"},
353 {F_TLV_LFBS, "LFBselect TLV"},
354 {F_TLV_PDAT, "PATH-DATA TLV"},
355 {F_TLV_KEYI, "KEYINFO TLV"},
356 {F_TLV_FULD, "FULLDATA TLV"},
357 {F_TLV_SPAD, "SPARSEDATA TLV"},
358 {F_TLV_REST, "RESULT TLV"},
359 {F_TLV_METD, "METADATA TLV"},
360 {F_TLV_REDD, "REDIRECTDATA TLV"},
361 {0, NULL}
362 };
363
364 #define TLV_HLN 4
365 static int
366 ttlv_valid(uint16_t ttlv)
367 {
368 if (ttlv > 0) {
369 if (ttlv == 1 || ttlv == 0x1000)
370 return 1;
371 if (ttlv >= 0x10 && ttlv <= 0x11)
372 return 1;
373 if (ttlv >= 0x110 && ttlv <= 0x116)
374 return 1;
375 if (ttlv >= 0x8000)
376 return 0; /* XXX: */
377 }
378
379 return 0;
380 }
381
382 struct forces_ilv {
383 nd_uint32_t type;
384 nd_uint32_t length;
385 };
386
387 struct forces_tlv {
388 nd_uint16_t type;
389 nd_uint16_t length;
390 };
391
392 #define F_ALN_LEN(len) roundup2(len, ForCES_ALNL)
393 #define GET_TOP_TLV(fhdr) ((const struct forces_tlv *)((fhdr) + sizeof (struct forcesh)))
394 #define TLV_SET_LEN(len) (F_ALN_LEN(TLV_HDRL) + (len))
395 #define TLV_DATA(tlvp) ((const void*)(((const char*)(tlvp)) + TLV_SET_LEN(0)))
396 #define GO_NXT_TLV(tlv,rlen) ((rlen) -= F_ALN_LEN(GET_BE_U_2((tlv)->length)), \
397 (const struct forces_tlv*)(((const char*)(tlv)) \
398 + F_ALN_LEN(GET_BE_U_2((tlv)->length))))
399 #define ILV_SET_LEN(len) (F_ALN_LEN(ILV_HDRL) + (len))
400 #define ILV_DATA(ilvp) ((const void*)(((const char*)(ilvp)) + ILV_SET_LEN(0)))
401 #define GO_NXT_ILV(ilv,rlen) ((rlen) -= F_ALN_LEN(GET_BE_U_4((ilv)->length)), \
402 (const struct forces_ilv *)(((const char*)(ilv)) \
403 + F_ALN_LEN(GET_BE_U_4((ilv)->length))))
404 #define INVALID_RLEN 1
405 #define INVALID_STLN 2
406 #define INVALID_LTLN 3
407 #define INVALID_ALEN 4
408
409 static const struct tok ForCES_TLV_err[] = {
410 {INVALID_RLEN, "Invalid total length"},
411 {INVALID_STLN, "xLV too short"},
412 {INVALID_LTLN, "xLV too long"},
413 {INVALID_ALEN, "data padding missing"},
414 {0, NULL}
415 };
416
417 static u_int
418 tlv_valid(u_int tlvl, u_int rlen)
419 {
420 if (rlen < TLV_HDRL)
421 return INVALID_RLEN;
422 if (tlvl < TLV_HDRL)
423 return INVALID_STLN;
424 if (tlvl > rlen)
425 return INVALID_LTLN;
426 if (rlen < F_ALN_LEN(tlvl))
427 return INVALID_ALEN;
428
429 return 0;
430 }
431
432 static int
433 ilv_valid(netdissect_options *ndo, const struct forces_ilv *ilv, u_int rlen)
434 {
435 if (rlen < ILV_HDRL)
436 return INVALID_RLEN;
437 if (GET_BE_U_4(ilv->length) < ILV_HDRL)
438 return INVALID_STLN;
439 if (GET_BE_U_4(ilv->length) > rlen)
440 return INVALID_LTLN;
441 if (rlen < F_ALN_LEN(GET_BE_U_4(ilv->length)))
442 return INVALID_ALEN;
443
444 return 0;
445 }
446
447 static int lfbselect_print(netdissect_options *, const u_char * pptr, u_int len,
448 uint16_t op_msk, int indent);
449 static int redirect_print(netdissect_options *, const u_char * pptr, u_int len,
450 uint16_t op_msk, int indent);
451 static int asrtlv_print(netdissect_options *, const u_char * pptr, u_int len,
452 uint16_t op_msk, int indent);
453 static int asttlv_print(netdissect_options *, const u_char * pptr, u_int len,
454 uint16_t op_msk, int indent);
455
456 struct forces_lfbsh {
457 nd_uint32_t class;
458 nd_uint32_t instance;
459 };
460
461 #define ASSNS_OPS (B_OP_REPORT)
462 #define CFG_OPS (B_OP_SET|B_OP_SETPROP|B_OP_DEL|B_OP_COMMIT|B_OP_RTRCOMP)
463 #define CFG_ROPS (B_OP_SETRESP|B_OP_SETPRESP|B_OP_DELRESP|B_OP_RCOMMIT)
464 #define CFG_QY (B_OP_GET|B_OP_GETPROP)
465 #define CFG_QYR (B_OP_GETRESP|B_OP_GETPRESP)
466 #define CFG_EVN (B_OP_REPORT)
467
468 static const struct tom_h ForCES_msg[TOM_MAX_IND + 1] = {
469 /* TOM_RSV_I */ {TOM_RSVD, ZERO_TTLV, 0, "Invalid message", NULL},
470 /* TOM_ASS_I */ {TOM_ASSNSETUP, ZERO_MORE_TTLV | TWO_TLV, ASSNS_OPS,
471 "Association Setup", lfbselect_print},
472 /* TOM_AST_I */
473 {TOM_ASSNTEARD, TTLV_T1, 0, "Association TearDown", asttlv_print},
474 /* TOM_CFG_I */ {TOM_CONFIG, TTLV_T2, CFG_OPS, "Config", lfbselect_print},
475 /* TOM_QRY_I */ {TOM_QUERY, TTLV_T2, CFG_QY, "Query", lfbselect_print},
476 /* TOM_EVN_I */ {TOM_EVENTNOT, TTLV_T1, CFG_EVN, "Event Notification",
477 lfbselect_print},
478 /* TOM_RED_I */
479 {TOM_PKTREDIR, TTLV_T2, 0, "Packet Redirect", redirect_print},
480 /* TOM_HBT_I */ {TOM_HEARTBT, ZERO_TTLV, 0, "HeartBeat", NULL},
481 /* TOM_ASR_I */
482 {TOM_ASSNSETREP, TTLV_T1, 0, "Association Response", asrtlv_print},
483 /* TOM_CNR_I */ {TOM_CONFIGREP, TTLV_T2, CFG_ROPS, "Config Response",
484 lfbselect_print},
485 /* TOM_QRR_I */
486 {TOM_QUERYREP, TTLV_T2, CFG_QYR, "Query Response", lfbselect_print},
487 };
488
489 static const struct tom_h *
490 get_forces_tom(uint8_t tom)
491 {
492 int i;
493 for (i = TOM_RSV_I; i <= TOM_MAX_IND; i++) {
494 const struct tom_h *th = &ForCES_msg[i];
495 if (th->v == tom)
496 return th;
497 }
498 return &ForCES_msg[TOM_RSV_I];
499 }
500
501 struct pdata_ops {
502 uint32_t v;
503 uint16_t flags;
504 uint16_t op_msk;
505 const char *s;
506 int (*print) (netdissect_options *, const u_char * pptr, u_int len,
507 uint16_t op_msk, int indent);
508 };
509
510 enum {
511 PD_RSV_I,
512 PD_SEL_I,
513 PD_FDT_I,
514 PD_SDT_I,
515 PD_RES_I,
516 PD_PDT_I,
517 _PD_RSV_MAX
518 };
519 #define PD_MAX_IND (_TOM_RSV_MAX - 1)
520
521 static int
522 pd_valid(uint16_t pd)
523 {
524 if (pd >= F_TLV_PDAT && pd <= F_TLV_REST)
525 return 1;
526 return 0;
527 }
528
529 static void
530 chk_op_type(netdissect_options *ndo,
531 uint16_t type, uint16_t msk, uint16_t omsk)
532 {
533 if (type != F_TLV_PDAT) {
534 if (msk & B_KEYIN) {
535 if (type != F_TLV_KEYI) {
536 ND_PRINT("Based on flags expected KEYINFO TLV!\n");
537 }
538 } else {
539 if (!(msk & omsk)) {
540 ND_PRINT("Illegal DATA encoding for type 0x%x programmed %x got %x\n",
541 type, omsk, msk);
542 }
543 }
544 }
545
546 }
547
548 #define F_SELKEY 1
549 #define F_SELTABRANGE 2
550 #define F_TABAPPEND 4
551
552 struct res_val {
553 nd_uint8_t result;
554 nd_uint8_t resv1;
555 nd_uint16_t resv2;
556 };
557
558 static int prestlv_print(netdissect_options *, const u_char * pptr, u_int len,
559 uint16_t op_msk, int indent);
560 static int pkeyitlv_print(netdissect_options *, const u_char * pptr, u_int len,
561 uint16_t op_msk, int indent);
562 static int fdatatlv_print(netdissect_options *, const u_char * pptr, u_int len,
563 uint16_t op_msk, int indent);
564 static int sdatatlv_print(netdissect_options *, const u_char * pptr, u_int len,
565 uint16_t op_msk, int indent);
566
567 static const struct pdata_ops ForCES_pdata[PD_MAX_IND + 1] = {
568 /* PD_RSV_I */ {0, 0, 0, "Invalid message", NULL},
569 /* PD_SEL_I */ {F_TLV_KEYI, 0, 0, "KEYINFO TLV", pkeyitlv_print},
570 /* PD_FDT_I */ {F_TLV_FULD, 0, B_FULLD, "FULLDATA TLV", fdatatlv_print},
571 /* PD_SDT_I */ {F_TLV_SPAD, 0, B_SPARD, "SPARSEDATA TLV", sdatatlv_print},
572 /* PD_RES_I */ {F_TLV_REST, 0, B_RESTV, "RESULT TLV", prestlv_print},
573 /* PD_PDT_I */
574 {F_TLV_PDAT, 0, 0, "Inner PATH-DATA TLV", recpdoptlv_print},
575 };
576
577 static const struct pdata_ops *
578 get_forces_pd(uint16_t pd)
579 {
580 int i;
581 for (i = PD_RSV_I + 1; i <= PD_MAX_IND; i++) {
582 const struct pdata_ops *pdo = &ForCES_pdata[i];
583 if (pdo->v == pd)
584 return pdo;
585 }
586 return &ForCES_pdata[TOM_RSV_I];
587 }
588
589 enum {
590 E_SUCCESS,
591 E_INVALID_HEADER,
592 E_LENGTH_MISMATCH,
593 E_VERSION_MISMATCH,
594 E_INVALID_DESTINATION_PID,
595 E_LFB_UNKNOWN,
596 E_LFB_NOT_FOUND,
597 E_LFB_INSTANCE_ID_NOT_FOUND,
598 E_INVALID_PATH,
599 E_COMPONENT_DOES_NOT_EXIST,
600 E_EXISTS,
601 E_NOT_FOUND,
602 E_READ_ONLY,
603 E_INVALID_ARRAY_CREATION,
604 E_VALUE_OUT_OF_RANGE,
605 E_CONTENTS_TOO_LONG,
606 E_INVALID_PARAMETERS,
607 E_INVALID_MESSAGE_TYPE,
608 E_INVALID_FLAGS,
609 E_INVALID_TLV,
610 E_EVENT_ERROR,
611 E_NOT_SUPPORTED,
612 E_MEMORY_ERROR,
613 E_INTERNAL_ERROR,
614 /* 0x18-0xFE are reserved .. */
615 E_UNSPECIFIED_ERROR = 0XFF
616 };
617
618 static const struct tok ForCES_errs[] = {
619 {E_SUCCESS, "SUCCESS"},
620 {E_INVALID_HEADER, "INVALID HEADER"},
621 {E_LENGTH_MISMATCH, "LENGTH MISMATCH"},
622 {E_VERSION_MISMATCH, "VERSION MISMATCH"},
623 {E_INVALID_DESTINATION_PID, "INVALID DESTINATION PID"},
624 {E_LFB_UNKNOWN, "LFB UNKNOWN"},
625 {E_LFB_NOT_FOUND, "LFB NOT FOUND"},
626 {E_LFB_INSTANCE_ID_NOT_FOUND, "LFB INSTANCE ID NOT FOUND"},
627 {E_INVALID_PATH, "INVALID PATH"},
628 {E_COMPONENT_DOES_NOT_EXIST, "COMPONENT DOES NOT EXIST"},
629 {E_EXISTS, "EXISTS ALREADY"},
630 {E_NOT_FOUND, "NOT FOUND"},
631 {E_READ_ONLY, "READ ONLY"},
632 {E_INVALID_ARRAY_CREATION, "INVALID ARRAY CREATION"},
633 {E_VALUE_OUT_OF_RANGE, "VALUE OUT OF RANGE"},
634 {E_CONTENTS_TOO_LONG, "CONTENTS TOO LONG"},
635 {E_INVALID_PARAMETERS, "INVALID PARAMETERS"},
636 {E_INVALID_MESSAGE_TYPE, "INVALID MESSAGE TYPE"},
637 {E_INVALID_FLAGS, "INVALID FLAGS"},
638 {E_INVALID_TLV, "INVALID TLV"},
639 {E_EVENT_ERROR, "EVENT ERROR"},
640 {E_NOT_SUPPORTED, "NOT SUPPORTED"},
641 {E_MEMORY_ERROR, "MEMORY ERROR"},
642 {E_INTERNAL_ERROR, "INTERNAL ERROR"},
643 {E_UNSPECIFIED_ERROR, "UNSPECIFIED ERROR"},
644 {0, NULL}
645 };
646
647 static const struct tok tdr_str[] = {
648 { 0, "Normal Teardown" },
649 { 1, "Loss of Heartbeats" },
650 { 2, "Out of bandwidth" },
651 { 3, "Out of Memory" },
652 { 4, "Application Crash" },
653 { 0, NULL }
654 };
655
656 #define RESLEN 4
657
658 static int
659 prestlv_print(netdissect_options *ndo,
660 const u_char * pptr, u_int len,
661 uint16_t op_msk _U_, int indent)
662 {
663 const struct forces_tlv *tlv = (const struct forces_tlv *)pptr;
664 const u_char *tdp = (const u_char *) TLV_DATA(tlv);
665 const struct res_val *r = (const struct res_val *)tdp;
666 u_int dlen;
667 uint8_t result;
668
669 /*
670 * pdatacnt_print() has ensured that len (the TLV length)
671 * >= TLV_HDRL.
672 */
673 dlen = len - TLV_HDRL;
674 if (dlen != RESLEN) {
675 ND_PRINT("illegal RESULT-TLV: %u bytes!\n", dlen);
676 goto invalid;
677 }
678
679 ND_TCHECK_SIZE(r);
680 result = GET_U_1(r->result);
681 if (result >= 0x18 && result <= 0xFE) {
682 ND_PRINT("illegal reserved result code: 0x%x!\n", result);
683 goto invalid;
684 }
685
686 if (ndo->ndo_vflag >= 3) {
687 char *ib = indent_pr(indent, 0);
688 ND_PRINT("%s Result: %s (code 0x%x)\n", ib,
689 tok2str(ForCES_errs, NULL, result), result);
690 }
691 return 0;
692
693 invalid:
694 return -1;
695 }
696
697 static int
698 fdatatlv_print(netdissect_options *ndo,
699 const u_char * pptr, u_int len,
700 uint16_t op_msk _U_, int indent)
701 {
702 const struct forces_tlv *tlv = (const struct forces_tlv *)pptr;
703 u_int rlen;
704 const u_char *tdp = (const u_char *) TLV_DATA(tlv);
705 uint16_t type;
706
707 /*
708 * pdatacnt_print() or pkeyitlv_print() has ensured that len
709 * (the TLV length) >= TLV_HDRL.
710 */
711 rlen = len - TLV_HDRL;
712 ND_TCHECK_SIZE(tlv);
713 type = GET_BE_U_2(tlv->type);
714 if (type != F_TLV_FULD) {
715 ND_PRINT("Error: expecting FULLDATA!\n");
716 goto invalid;
717 }
718
719 if (ndo->ndo_vflag >= 3) {
720 char *ib = indent_pr(indent + 2, 1);
721 ND_PRINT("%s[", ib + 1);
722 hex_print(ndo, ib, tdp, rlen);
723 ND_PRINT("\n%s]", ib + 1);
724 }
725 return 0;
726
727 invalid:
728 return -1;
729 }
730
731 static int
732 sdatailv_print(netdissect_options *ndo,
733 const u_char * pptr, u_int len,
734 uint16_t op_msk _U_, int indent)
735 {
736 u_int rlen;
737 const struct forces_ilv *ilv = (const struct forces_ilv *)pptr;
738 int invilv;
739
740 if (len < ILV_HDRL) {
741 ND_PRINT("Error: BAD SPARSEDATA-TLV!\n");
742 goto invalid;
743 }
744 rlen = len;
745 indent += 1;
746 while (rlen != 0) {
747 char *ib = indent_pr(indent, 1);
748 const u_char *tdp = (const u_char *) ILV_DATA(ilv);
749 invilv = ilv_valid(ndo, ilv, rlen);
750 if (invilv) {
751 ND_PRINT("%s[", ib + 1);
752 hex_print(ndo, ib, tdp, rlen);
753 ND_PRINT("\n%s]\n", ib + 1);
754 goto invalid;
755 }
756 if (ndo->ndo_vflag >= 3) {
757 u_int ilvl = GET_BE_U_4(ilv->length);
758 ND_PRINT("\n%s ILV: type %x length %u\n", ib + 1,
759 GET_BE_U_4(ilv->type), ilvl);
760 hex_print(ndo, "\t\t[", tdp, ilvl-ILV_HDRL);
761 }
762
763 ilv = GO_NXT_ILV(ilv, rlen);
764 }
765
766 return 0;
767 invalid:
768 return -1;
769 }
770
771 static int
772 sdatatlv_print(netdissect_options *ndo,
773 const u_char * pptr, u_int len,
774 uint16_t op_msk, int indent)
775 {
776 const struct forces_tlv *tlv = (const struct forces_tlv *)pptr;
777 u_int rlen;
778 const u_char *tdp = (const u_char *) TLV_DATA(tlv);
779 uint16_t type;
780
781 /*
782 * pdatacnt_print() has ensured that len (the TLV length)
783 * >= TLV_HDRL.
784 */
785 rlen = len - TLV_HDRL;
786 ND_TCHECK_SIZE(tlv);
787 type = GET_BE_U_2(tlv->type);
788 if (type != F_TLV_SPAD) {
789 ND_PRINT("Error: expecting SPARSEDATA!\n");
790 goto invalid;
791 }
792
793 return sdatailv_print(ndo, tdp, rlen, op_msk, indent);
794
795 invalid:
796 return -1;
797 }
798
799 static int
800 pkeyitlv_print(netdissect_options *ndo,
801 const u_char * pptr, u_int len,
802 uint16_t op_msk, int indent)
803 {
804 const struct forces_tlv *tlv = (const struct forces_tlv *)pptr;
805 const u_char *tdp = (const u_char *) TLV_DATA(tlv);
806 const u_char *dp = tdp + 4;
807 const struct forces_tlv *kdtlv = (const struct forces_tlv *)dp;
808 uint32_t id;
809 char *ib = indent_pr(indent, 0);
810 uint16_t type, tll;
811 u_int invtlv;
812
813 id = GET_BE_U_4(tdp);
814 ND_PRINT("%sKeyinfo: Key 0x%x\n", ib, id);
815 type = GET_BE_U_2(kdtlv->type);
816 tll = GET_BE_U_2(kdtlv->length);
817 invtlv = tlv_valid(tll, len);
818
819 if (invtlv) {
820 ND_PRINT("%s TLV type 0x%x len %u\n",
821 tok2str(ForCES_TLV_err, NULL, invtlv), type,
822 tll);
823 goto invalid;
824 }
825 /*
826 * At this point, tlv_valid() has ensured that the TLV
827 * length is large enough but not too large (it doesn't
828 * go past the end of the containing TLV).
829 */
830 tll = GET_BE_U_2(kdtlv->length);
831 dp = (const u_char *) TLV_DATA(kdtlv);
832 return fdatatlv_print(ndo, dp, tll, op_msk, indent);
833 invalid:
834 return -1;
835 }
836
837 #define PTH_DESC_SIZE 12
838
839 static int
840 pdatacnt_print(netdissect_options *ndo,
841 const u_char * pptr, u_int len,
842 uint16_t IDcnt, uint16_t op_msk, int indent)
843 {
844 u_int i;
845 uint32_t id;
846 char *ib = indent_pr(indent, 0);
847
848 if ((op_msk & B_APPND) && ndo->ndo_vflag >= 3) {
849 ND_PRINT("%sTABLE APPEND\n", ib);
850 }
851 for (i = 0; i < IDcnt; i++) {
852 ND_TCHECK_4(pptr);
853 if (len < 4)
854 goto invalid;
855 id = GET_BE_U_4(pptr);
856 if (ndo->ndo_vflag >= 3)
857 ND_PRINT("%sID#%02u: %u\n", ib, i + 1, id);
858 len -= 4;
859 pptr += 4;
860 }
861
862 if ((op_msk & B_TRNG) || (op_msk & B_KEYIN)) {
863 if (op_msk & B_TRNG) {
864 uint32_t starti, endi;
865
866 if (len < PTH_DESC_SIZE) {
867 ND_PRINT("pathlength %u with key/range too short %u\n",
868 len, PTH_DESC_SIZE);
869 goto invalid;
870 }
871
872 pptr += sizeof(struct forces_tlv);
873 len -= sizeof(struct forces_tlv);
874
875 starti = GET_BE_U_4(pptr);
876 pptr += 4;
877 len -= 4;
878
879 endi = GET_BE_U_4(pptr);
880 pptr += 4;
881 len -= 4;
882
883 if (ndo->ndo_vflag >= 3)
884 ND_PRINT("%sTable range: [%u,%u]\n", ib, starti, endi);
885 }
886
887 if (op_msk & B_KEYIN) {
888 const struct forces_tlv *keytlv;
889 uint16_t tll;
890
891 if (len < PTH_DESC_SIZE) {
892 ND_PRINT("pathlength %u with key/range too short %u\n",
893 len, PTH_DESC_SIZE);
894 goto invalid;
895 }
896
897 /* skip keyid */
898 pptr += 4;
899 len -= 4;
900 keytlv = (const struct forces_tlv *)pptr;
901 /* skip header */
902 pptr += sizeof(struct forces_tlv);
903 len -= sizeof(struct forces_tlv);
904 /* skip key content */
905 tll = GET_BE_U_2(keytlv->length);
906 if (tll < TLV_HDRL) {
907 ND_PRINT("key content length %u < %u\n",
908 tll, TLV_HDRL);
909 goto invalid;
910 }
911 tll -= TLV_HDRL;
912 if (len < tll) {
913 ND_PRINT("key content too short\n");
914 goto invalid;
915 }
916 pptr += tll;
917 len -= tll;
918 }
919
920 }
921
922 if (len) {
923 const struct forces_tlv *pdtlv = (const struct forces_tlv *)pptr;
924 uint16_t type;
925 uint16_t tlvl, tll;
926 u_int pad = 0;
927 u_int aln;
928 u_int invtlv;
929
930 type = GET_BE_U_2(pdtlv->type);
931 tlvl = GET_BE_U_2(pdtlv->length);
932 invtlv = tlv_valid(tlvl, len);
933 if (invtlv) {
934 ND_PRINT("%s Outstanding bytes %u for TLV type 0x%x TLV len %u\n",
935 tok2str(ForCES_TLV_err, NULL, invtlv), len, type,
936 tlvl);
937 goto pd_err;
938 }
939 /*
940 * At this point, tlv_valid() has ensured that the TLV
941 * length is large enough but not too large (it doesn't
942 * go past the end of the containing TLV).
943 */
944 tll = tlvl - TLV_HDRL;
945 aln = F_ALN_LEN(tlvl);
946 if (aln > tlvl) {
947 if (aln > len) {
948 ND_PRINT("Invalid padded pathdata TLV type 0x%x len %u missing %u pad bytes\n",
949 type, tlvl, aln - len);
950 } else {
951 pad = aln - tlvl;
952 }
953 }
954 if (pd_valid(type)) {
955 const struct pdata_ops *ops = get_forces_pd(type);
956
957 if (ndo->ndo_vflag >= 3 && ops->v != F_TLV_PDAT) {
958 if (pad)
959 ND_PRINT("%s %s (Length %u DataLen %u pad %u Bytes)\n",
960 ib, ops->s, tlvl, tll, pad);
961 else
962 ND_PRINT("%s %s (Length %u DataLen %u Bytes)\n",
963 ib, ops->s, tlvl, tll);
964 }
965
966 chk_op_type(ndo, type, op_msk, ops->op_msk);
967
968 if (ops->print(ndo, (const u_char *)pdtlv,
969 tll + pad + TLV_HDRL, op_msk,
970 indent + 2) == -1)
971 goto invalid;
972 len -= (TLV_HDRL + pad + tll);
973 } else {
974 ND_PRINT("Invalid path data content type 0x%x len %u\n",
975 type, tlvl);
976 pd_err:
977 if (tlvl) {
978 hex_print(ndo, "Bad Data val\n\t [",
979 pptr, len);
980 ND_PRINT("]\n");
981
982 goto invalid;
983 }
984 }
985 }
986 return len;
987
988 invalid:
989 return -1;
990 }
991
992 static int
993 pdata_print(netdissect_options *ndo,
994 const u_char * pptr, u_int len,
995 uint16_t op_msk, int indent)
996 {
997 const struct pathdata_h *pdh = (const struct pathdata_h *)pptr;
998 char *ib = indent_pr(indent, 0);
999 u_int minsize = 0;
1000 int more_pd = 0;
1001 uint16_t idcnt = 0;
1002
1003 ND_TCHECK_SIZE(pdh);
1004 if (len < sizeof(struct pathdata_h))
1005 goto invalid;
1006 if (ndo->ndo_vflag >= 3) {
1007 ND_PRINT("\n%sPathdata: Flags 0x%x ID count %u\n",
1008 ib, GET_BE_U_2(pdh->pflags),
1009 GET_BE_U_2(pdh->pIDcnt));
1010 }
1011
1012 if (GET_BE_U_2(pdh->pflags) & F_SELKEY) {
1013 op_msk |= B_KEYIN;
1014 }
1015
1016 /* Table GET Range operation */
1017 if (GET_BE_U_2(pdh->pflags) & F_SELTABRANGE) {
1018 op_msk |= B_TRNG;
1019 }
1020 /* Table SET append operation */
1021 if (GET_BE_U_2(pdh->pflags) & F_TABAPPEND) {
1022 op_msk |= B_APPND;
1023 }
1024
1025 pptr += sizeof(struct pathdata_h);
1026 len -= sizeof(struct pathdata_h);
1027 idcnt = GET_BE_U_2(pdh->pIDcnt);
1028 minsize = idcnt * 4;
1029 if (len < minsize) {
1030 ND_PRINT("\t\t\ttruncated IDs expected %uB got %uB\n", minsize,
1031 len);
1032 hex_print(ndo, "\t\t\tID Data[", pptr, len);
1033 ND_PRINT("]\n");
1034 goto invalid;
1035 }
1036
1037 if ((op_msk & B_TRNG) && (op_msk & B_KEYIN)) {
1038 ND_PRINT("\t\t\tIllegal to have both Table ranges and keys\n");
1039 goto invalid;
1040 }
1041
1042 more_pd = pdatacnt_print(ndo, pptr, len, idcnt, op_msk, indent);
1043 if (more_pd > 0) {
1044 int consumed = len - more_pd;
1045 pptr += consumed;
1046 len = more_pd;
1047 /* XXX: Argh, recurse some more */
1048 return recpdoptlv_print(ndo, pptr, len, op_msk, indent+1);
1049 } else
1050 return more_pd;
1051
1052 invalid:
1053 return -1;
1054 }
1055
1056 static int
1057 genoptlv_print(netdissect_options *ndo,
1058 const u_char * pptr, u_int len,
1059 uint16_t op_msk, int indent)
1060 {
1061 const struct forces_tlv *pdtlv = (const struct forces_tlv *)pptr;
1062 uint16_t type;
1063 u_int tlvl;
1064 u_int invtlv;
1065 char *ib = indent_pr(indent, 0);
1066
1067 type = GET_BE_U_2(pdtlv->type);
1068 tlvl = GET_BE_U_2(pdtlv->length);
1069 invtlv = tlv_valid(tlvl, len);
1070 ND_PRINT("genoptlvprint - %s TLV type 0x%x len %u\n",
1071 tok2str(ForCES_TLV, NULL, type), type, tlvl);
1072 if (invtlv) {
1073 ND_PRINT("\t\t\tInvalid ForCES TLV type=%x", type);
1074 goto invalid;
1075 }
1076 /*
1077 * At this point, tlv_valid() has ensured that the TLV
1078 * length is large enough but not too large (it doesn't
1079 * go past the end of the containing TLV).
1080 */
1081 const u_char *dp = (const u_char *) TLV_DATA(pdtlv);
1082
1083 if (!ttlv_valid(type)) {
1084 ND_PRINT("%s TLV type 0x%x len %u\n",
1085 tok2str(ForCES_TLV_err, NULL, invtlv), type,
1086 tlvl);
1087 goto invalid;
1088 }
1089 if (ndo->ndo_vflag >= 3)
1090 ND_PRINT("%s%s, length %u (data length %u Bytes)",
1091 ib, tok2str(ForCES_TLV, NULL, type),
1092 tlvl, tlvl - TLV_HDRL);
1093
1094 return pdata_print(ndo, dp, tlvl - TLV_HDRL, op_msk, indent + 1);
1095 invalid:
1096 return -1;
1097 }
1098
1099 static int
1100 recpdoptlv_print(netdissect_options *ndo,
1101 const u_char * pptr, u_int len,
1102 uint16_t op_msk, int indent)
1103 {
1104 const struct forces_tlv *pdtlv = (const struct forces_tlv *)pptr;
1105
1106 while (len != 0) {
1107 uint16_t type, tlvl;
1108 u_int invtlv;
1109 char *ib;
1110 const u_char *dp;
1111
1112 tlvl = GET_BE_U_2(pdtlv->length);
1113 invtlv = tlv_valid(tlvl, len);
1114 if (invtlv) {
1115 break;
1116 }
1117
1118 /*
1119 * At this point, tlv_valid() has ensured that the TLV
1120 * length is large enough but not too large (it doesn't
1121 * go past the end of the containing TLV).
1122 */
1123 ib = indent_pr(indent, 0);
1124 type = GET_BE_U_2(pdtlv->type);
1125 dp = (const u_char *) TLV_DATA(pdtlv);
1126
1127 if (ndo->ndo_vflag >= 3)
1128 ND_PRINT("%s%s, length %u (data encapsulated %u Bytes)",
1129 ib, tok2str(ForCES_TLV, NULL, type),
1130 tlvl,
1131 tlvl - TLV_HDRL);
1132
1133 if (pdata_print(ndo, dp, tlvl - TLV_HDRL, op_msk, indent + 1) == -1)
1134 goto invalid;
1135 pdtlv = GO_NXT_TLV(pdtlv, len);
1136 }
1137
1138 if (len) {
1139 ND_PRINT("\n\t\tMessy PATHDATA TLV header, type (0x%x)\n\t\texcess of %u Bytes ",
1140 GET_BE_U_2(pdtlv->type),
1141 len - GET_BE_U_2(pdtlv->length));
1142 goto invalid;
1143 }
1144
1145 return 0;
1146 invalid:
1147 return -1;
1148 }
1149
1150 static int
1151 invoptlv_print(netdissect_options *ndo,
1152 const u_char * pptr, u_int len,
1153 uint16_t op_msk _U_, int indent)
1154 {
1155 char *ib = indent_pr(indent, 1);
1156
1157 if (ndo->ndo_vflag >= 3) {
1158 ND_PRINT("%sData[", ib + 1);
1159 hex_print(ndo, ib, pptr, len);
1160 ND_PRINT("%s]\n", ib);
1161 }
1162 return -1;
1163 }
1164
1165 static int
1166 otlv_print(netdissect_options *ndo,
1167 const struct forces_tlv *otlv, uint16_t op_msk _U_, int indent)
1168 {
1169 int rc = 0;
1170 const u_char *dp = (const u_char *) TLV_DATA(otlv);
1171 uint16_t type;
1172 u_int tll;
1173 char *ib = indent_pr(indent, 0);
1174 const struct optlv_h *ops;
1175
1176 /*
1177 * lfbselect_print() has ensured that GET_BE_U_2(otlv->length)
1178 * >= TLV_HDRL.
1179 */
1180 type = GET_BE_U_2(otlv->type);
1181 tll = GET_BE_U_2(otlv->length) - TLV_HDRL;
1182 ops = get_forces_optlv_h(type);
1183 if (ndo->ndo_vflag >= 3) {
1184 ND_PRINT("%sOper TLV %s(0x%x) length %u\n", ib, ops->s, type,
1185 GET_BE_U_2(otlv->length));
1186 }
1187 /* rest of ops must at least have 12B {pathinfo} */
1188 if (tll < OP_MIN_SIZ) {
1189 ND_PRINT("\t\tOper TLV %s(0x%x) length %u\n", ops->s, type,
1190 GET_BE_U_2(otlv->length));
1191 ND_PRINT("\t\tTruncated data size %u minimum required %u\n", tll,
1192 OP_MIN_SIZ);
1193 return invoptlv_print(ndo, dp, tll, ops->op_msk, indent);
1194
1195 }
1196
1197 /* XXX - do anything with ops->flags? */
1198 if(ops->print) {
1199 rc = ops->print(ndo, dp, tll, ops->op_msk, indent + 1);
1200 }
1201 return rc;
1202 }
1203
1204 #define ASTDLN 4
1205 #define ASTMCD 255
1206 static int
1207 asttlv_print(netdissect_options *ndo,
1208 const u_char * pptr, u_int len,
1209 uint16_t op_msk _U_, int indent)
1210 {
1211 uint32_t rescode;
1212 u_int dlen;
1213 char *ib = indent_pr(indent, 0);
1214
1215 /*
1216 * forces_type_print() has ensured that len (the TLV length)
1217 * >= TLV_HDRL.
1218 */
1219 dlen = len - TLV_HDRL;
1220 if (dlen != ASTDLN) {
1221 ND_PRINT("illegal ASTresult-TLV: %u bytes!\n", dlen);
1222 goto invalid;
1223 }
1224 rescode = GET_BE_U_4(pptr);
1225 if (rescode > ASTMCD) {
1226 ND_PRINT("illegal ASTresult result code: %u!\n", rescode);
1227 goto invalid;
1228 }
1229
1230 if (ndo->ndo_vflag >= 3) {
1231 ND_PRINT("Teardown reason:\n%s%s", ib,
1232 tok2str(tdr_str, "unknown (%u)", rescode));
1233 ND_PRINT("(%x)\n%s", rescode, ib);
1234 }
1235 return 0;
1236 invalid:
1237 return -1;
1238 }
1239
1240 #define ASRDLN 4
1241 #define ASRMCD 3
1242 static int
1243 asrtlv_print(netdissect_options *ndo,
1244 const u_char * pptr, u_int len,
1245 uint16_t op_msk _U_, int indent)
1246 {
1247 uint32_t rescode;
1248 u_int dlen;
1249 char *ib = indent_pr(indent, 0);
1250
1251 /*
1252 * forces_type_print() has ensured that len (the TLV length)
1253 * >= TLV_HDRL.
1254 */
1255 dlen = len - TLV_HDRL;
1256 if (dlen != ASRDLN) { /* id, instance, oper tlv */
1257 ND_PRINT("illegal ASRresult-TLV: %u bytes!\n", dlen);
1258 goto invalid;
1259 }
1260 rescode = GET_BE_U_4(pptr);
1261
1262 if (rescode > ASRMCD) {
1263 ND_PRINT("illegal ASRresult result code: %u!\n", rescode);
1264 goto invalid;
1265 }
1266
1267 if (ndo->ndo_vflag >= 3) {
1268 ND_PRINT("\n%s", ib);
1269 switch (rescode) {
1270 case 0:
1271 ND_PRINT("Success ");
1272 break;
1273 case 1:
1274 ND_PRINT("FE ID invalid ");
1275 break;
1276 case 2:
1277 ND_PRINT("permission denied ");
1278 break;
1279 default:
1280 ND_PRINT("Unknown ");
1281 break;
1282 }
1283 ND_PRINT("(%x)\n%s", rescode, ib);
1284 }
1285 return 0;
1286 invalid:
1287 return -1;
1288 }
1289
1290 #if 0
1291 /*
1292 * XXX - not used.
1293 */
1294 static int
1295 gentltlv_print(netdissect_options *ndo,
1296 const u_char * pptr _U_, u_int len,
1297 uint16_t op_msk _U_, int indent _U_)
1298 {
1299 u_int dlen = len - TLV_HDRL;
1300
1301 if (dlen < 4) { /* at least 32 bits must exist */
1302 ND_PRINT("truncated TLV: %u bytes missing! ", 4 - dlen);
1303 return -1;
1304 }
1305 return 0;
1306 }
1307 #endif
1308
1309 #define RD_MIN 8
1310
1311 static int
1312 print_metailv(netdissect_options *ndo,
1313 const u_char * pptr, uint16_t op_msk _U_, int indent)
1314 {
1315 u_int rlen;
1316 char *ib = indent_pr(indent, 0);
1317 /* XXX: check header length */
1318 const struct forces_ilv *ilv = (const struct forces_ilv *)pptr;
1319
1320 /*
1321 * print_metatlv() has ensured that len (what remains in the
1322 * ILV) >= ILV_HDRL.
1323 */
1324 rlen = GET_BE_U_4(ilv->length) - ILV_HDRL;
1325 ND_PRINT("%sMetaID 0x%x length %u\n", ib, GET_BE_U_4(ilv->type),
1326 GET_BE_U_4(ilv->length));
1327 if (ndo->ndo_vflag >= 3) {
1328 hex_print(ndo, "\t\t[", ILV_DATA(ilv), rlen);
1329 ND_PRINT(" ]\n");
1330 }
1331 return 0;
1332 }
1333
1334 static int
1335 print_metatlv(netdissect_options *ndo,
1336 const u_char * pptr, u_int len,
1337 uint16_t op_msk _U_, int indent)
1338 {
1339 u_int dlen;
1340 char *ib = indent_pr(indent, 0);
1341 u_int rlen;
1342 const struct forces_ilv *ilv = (const struct forces_ilv *)pptr;
1343 int invilv;
1344
1345 /*
1346 * redirect_print() has ensured that len (what remains in the
1347 * TLV) >= TLV_HDRL.
1348 */
1349 dlen = len - TLV_HDRL;
1350 rlen = dlen;
1351 ND_PRINT("\n%s METADATA length %u\n", ib, rlen);
1352 while (rlen != 0) {
1353 invilv = ilv_valid(ndo, ilv, rlen);
1354 if (invilv) {
1355 break;
1356 }
1357
1358 /*
1359 * At this point, ilv_valid() has ensured that the ILV
1360 * length is large enough but not too large (it doesn't
1361 * go past the end of the containing TLV).
1362 */
1363 print_metailv(ndo, (const u_char *) ilv, 0, indent + 1);
1364 ilv = GO_NXT_ILV(ilv, rlen);
1365 }
1366
1367 return 0;
1368 }
1369
1370
1371 static int
1372 print_reddata(netdissect_options *ndo,
1373 const u_char * pptr, u_int len,
1374 uint16_t op_msk _U_, int indent)
1375 {
1376 u_int dlen;
1377 char *ib = indent_pr(indent, 0);
1378 u_int rlen;
1379
1380 dlen = len - TLV_HDRL;
1381 rlen = dlen;
1382 ND_PRINT("\n%s Redirect Data length %u\n", ib, rlen);
1383
1384 if (ndo->ndo_vflag >= 3) {
1385 ND_PRINT("\t\t[");
1386 hex_print(ndo, "\n\t\t", pptr, rlen);
1387 ND_PRINT("\n\t\t]");
1388 }
1389
1390 return 0;
1391 }
1392
1393 static int
1394 redirect_print(netdissect_options *ndo,
1395 const u_char * pptr, u_int len,
1396 uint16_t op_msk _U_, int indent)
1397 {
1398 const struct forces_tlv *tlv = (const struct forces_tlv *)pptr;
1399 u_int dlen;
1400 u_int rlen;
1401 u_int invtlv;
1402
1403 /*
1404 * forces_type_print() has ensured that len (the TLV length)
1405 * >= TLV_HDRL.
1406 */
1407 dlen = len - TLV_HDRL;
1408 if (dlen <= RD_MIN) {
1409 ND_PRINT("\n\t\ttruncated Redirect TLV: %u bytes missing! ",
1410 RD_MIN - dlen);
1411 goto invalid;
1412 }
1413
1414 rlen = dlen;
1415 indent += 1;
1416 while (rlen != 0) {
1417 uint16_t type, tlvl;
1418
1419 type = GET_BE_U_2(tlv->type);
1420 tlvl = GET_BE_U_2(tlv->length);
1421 invtlv = tlv_valid(tlvl, rlen);
1422 if (invtlv) {
1423 ND_PRINT("Bad Redirect data\n");
1424 break;
1425 }
1426
1427 /*
1428 * At this point, tlv_valid() has ensured that the TLV
1429 * length is large enough but not too large (it doesn't
1430 * go past the end of the containing TLV).
1431 */
1432 if (type == F_TLV_METD) {
1433 print_metatlv(ndo, (const u_char *) TLV_DATA(tlv),
1434 tlvl, 0,
1435 indent);
1436 } else if (type == F_TLV_REDD) {
1437 print_reddata(ndo, (const u_char *) TLV_DATA(tlv),
1438 tlvl, 0,
1439 indent);
1440 } else {
1441 ND_PRINT("Unknown REDIRECT TLV 0x%x len %u\n",
1442 type,
1443 tlvl);
1444 }
1445
1446 tlv = GO_NXT_TLV(tlv, rlen);
1447 }
1448
1449 if (rlen) {
1450 ND_PRINT("\n\t\tMessy Redirect TLV header, type (0x%x)\n\t\texcess of %u Bytes ",
1451 GET_BE_U_2(tlv->type),
1452 rlen - GET_BE_U_2(tlv->length));
1453 goto invalid;
1454 }
1455
1456 return 0;
1457 invalid:
1458 return -1;
1459 }
1460
1461 #define OP_OFF 8
1462 #define OP_MIN 12
1463
1464 static int
1465 lfbselect_print(netdissect_options *ndo,
1466 const u_char * pptr, u_int len,
1467 uint16_t op_msk, int indent)
1468 {
1469 const struct forces_lfbsh *lfbs;
1470 const struct forces_tlv *otlv;
1471 char *ib = indent_pr(indent, 0);
1472 u_int dlen;
1473 u_int rlen;
1474 u_int invtlv;
1475
1476 /*
1477 * forces_type_print() has ensured that len (the TLV length)
1478 * >= TLV_HDRL.
1479 */
1480 dlen = len - TLV_HDRL;
1481 if (dlen <= OP_MIN) { /* id, instance, oper tlv header .. */
1482 ND_PRINT("\n\t\tundersized lfb selector: %u bytes missing! ",
1483 OP_MIN - dlen);
1484 goto invalid;
1485 }
1486
1487 /*
1488 * At this point, we know that dlen > OP_MIN; OP_OFF < OP_MIN, so
1489 * we also know that it's > OP_OFF.
1490 */
1491 rlen = dlen - OP_OFF;
1492
1493 lfbs = (const struct forces_lfbsh *)pptr;
1494 ND_TCHECK_SIZE(lfbs);
1495 if (ndo->ndo_vflag >= 3) {
1496 ND_PRINT("\n%s%s(Classid %x) instance %x\n",
1497 ib,
1498 tok2str(ForCES_LFBs, NULL, GET_BE_U_4(lfbs->class)),
1499 GET_BE_U_4(lfbs->class),
1500 GET_BE_U_4(lfbs->instance));
1501 }
1502
1503 otlv = (const struct forces_tlv *)(lfbs + 1);
1504
1505 indent += 1;
1506 while (rlen != 0) {
1507 uint16_t type, tlvl;
1508
1509 type = GET_BE_U_2(otlv->type);
1510 tlvl = GET_BE_U_2(otlv->length);
1511 invtlv = tlv_valid(tlvl, rlen);
1512 if (invtlv)
1513 break;
1514
1515 /*
1516 * At this point, tlv_valid() has ensured that the TLV
1517 * length is large enough but not too large (it doesn't
1518 * go past the end of the containing TLV).
1519 */
1520 if (op_valid(type, op_msk)) {
1521 otlv_print(ndo, otlv, 0, indent);
1522 } else {
1523 if (ndo->ndo_vflag < 3)
1524 ND_PRINT("\n");
1525 ND_PRINT("\t\tINValid oper-TLV type 0x%x length %u for this ForCES message\n",
1526 type, tlvl);
1527 invoptlv_print(ndo, (const u_char *)otlv, rlen, 0, indent);
1528 }
1529 otlv = GO_NXT_TLV(otlv, rlen);
1530 }
1531
1532 if (rlen) {
1533 ND_PRINT("\n\t\tMessy oper TLV header, type (0x%x)\n\t\texcess of %u Bytes ",
1534 GET_BE_U_2(otlv->type),
1535 rlen - GET_BE_U_2(otlv->length));
1536 goto invalid;
1537 }
1538
1539 return 0;
1540
1541 invalid:
1542 return -1;
1543 }
1544
1545 static int
1546 forces_type_print(netdissect_options *ndo,
1547 const u_char * pptr, const struct forcesh *fhdr _U_,
1548 u_int mlen, const struct tom_h *tops)
1549 {
1550 const struct forces_tlv *tltlv;
1551 u_int rlen;
1552 u_int invtlv;
1553 int rc = 0;
1554 u_int ttlv = 0;
1555
1556 /*
1557 * forces_print() has already checked that mlen >= ForCES_HDRL
1558 * by calling ForCES_HLN_VALID().
1559 */
1560 rlen = mlen - ForCES_HDRL;
1561
1562 if (rlen > TLV_HLN) {
1563 if (tops->flags & ZERO_TTLV) {
1564 ND_PRINT("<0x%x>Illegal Top level TLV!\n", tops->flags);
1565 goto invalid;
1566 }
1567 } else {
1568 if (tops->flags & ZERO_MORE_TTLV)
1569 return 0;
1570 if (tops->flags & ONE_MORE_TTLV) {
1571 ND_PRINT("\tTop level TLV Data missing!\n");
1572 goto invalid;
1573 }
1574 }
1575
1576 if (tops->flags & ZERO_TTLV) {
1577 return 0;
1578 }
1579
1580 ttlv = tops->flags >> 4;
1581 tltlv = GET_TOP_TLV(pptr);
1582
1583 /*XXX: 15 top level tlvs will probably be fine
1584 You are nuts if you send more ;-> */
1585 while (rlen != 0) {
1586 uint16_t type, tlvl;
1587
1588 type = GET_BE_U_2(tltlv->type);
1589 tlvl = GET_BE_U_2(tltlv->length);
1590 invtlv = tlv_valid(tlvl, rlen);
1591 if (invtlv)
1592 break;
1593
1594 /*
1595 * At this point, tlv_valid() has ensured that the TLV
1596 * length is large enough but not too large (it doesn't
1597 * go past the end of the packet).
1598 */
1599 if (!ttlv_valid(type)) {
1600 ND_PRINT("\n\tInvalid ForCES Top TLV type=0x%x",
1601 type);
1602 goto invalid;
1603 }
1604
1605 if (ndo->ndo_vflag >= 3)
1606 ND_PRINT("\t%s, length %u (data length %u Bytes)",
1607 tok2str(ForCES_TLV, NULL, type),
1608 tlvl,
1609 tlvl - TLV_HDRL);
1610
1611 rc = tops->print(ndo, (const u_char *) TLV_DATA(tltlv),
1612 tlvl,
1613 tops->op_msk, 9);
1614 if (rc < 0) {
1615 goto invalid;
1616 }
1617 tltlv = GO_NXT_TLV(tltlv, rlen);
1618 ttlv--;
1619 if (ttlv <= 0)
1620 break;
1621 }
1622 /*
1623 * XXX - if ttlv != 0, does that mean that the packet was too
1624 * short, and didn't have *enough* TLVs in it?
1625 */
1626 if (rlen) {
1627 ND_PRINT("\tMess TopTLV header: min %u, total %u advertised %u ",
1628 TLV_HDRL, rlen, GET_BE_U_2(tltlv->length));
1629 goto invalid;
1630 }
1631
1632 return 0;
1633 invalid:
1634 return -1;
1635 }
1636
1637 void
1638 forces_print(netdissect_options *ndo,
1639 const u_char * pptr, u_int len)
1640 {
1641 const struct forcesh *fhdr;
1642 u_int mlen;
1643 uint32_t flg_raw;
1644 uint8_t tom;
1645 const struct tom_h *tops;
1646 int rc = 0;
1647
1648 ndo->ndo_protocol = "forces";
1649 fhdr = (const struct forcesh *)pptr;
1650 ND_TCHECK_SIZE(fhdr);
1651 tom = GET_U_1(fhdr->fm_tom);
1652 if (!tom_valid(tom)) {
1653 ND_PRINT("Invalid ForCES message type %u\n", tom);
1654 goto invalid;
1655 }
1656
1657 mlen = ForCES_BLN(fhdr);
1658
1659 tops = get_forces_tom(tom);
1660 if (tops->v == TOM_RSVD) {
1661 ND_PRINT("\n\tUnknown ForCES message type=0x%x", tom);
1662 goto invalid;
1663 }
1664
1665 ND_PRINT("\n\tForCES %s ", tops->s);
1666 if (!ForCES_HLN_VALID(mlen, len)) {
1667 ND_PRINT("Illegal ForCES pkt len - min %u, total recvd %u, advertised %u ",
1668 ForCES_HDRL, len, ForCES_BLN(fhdr));
1669 goto invalid;
1670 }
1671
1672 flg_raw = GET_BE_U_4(pptr + 20);
1673 if (ndo->ndo_vflag >= 1) {
1674 ND_PRINT("\n\tForCES Version %u len %uB flags 0x%08x ",
1675 ForCES_V(fhdr), mlen, flg_raw);
1676 ND_PRINT("\n\tSrcID 0x%x(%s) DstID 0x%x(%s) Correlator 0x%" PRIx64,
1677 ForCES_SID(fhdr), ForCES_node(ForCES_SID(fhdr)),
1678 ForCES_DID(fhdr), ForCES_node(ForCES_DID(fhdr)),
1679 GET_BE_U_8(fhdr->fm_cor));
1680
1681 }
1682 if (ndo->ndo_vflag >= 2) {
1683 ND_PRINT("\n\tForCES flags:\n\t %s(0x%x), prio=%u, %s(0x%x),\n\t %s(0x%x), %s(0x%x)\n",
1684 tok2str(ForCES_ACKs, "ACKUnknown", ForCES_ACK(fhdr)),
1685 ForCES_ACK(fhdr),
1686 ForCES_PRI(fhdr),
1687 tok2str(ForCES_EMs, "EMUnknown", ForCES_EM(fhdr)),
1688 ForCES_EM(fhdr),
1689 tok2str(ForCES_ATs, "ATUnknown", ForCES_AT(fhdr)),
1690 ForCES_AT(fhdr),
1691 tok2str(ForCES_TPs, "TPUnknown", ForCES_TP(fhdr)),
1692 ForCES_TP(fhdr));
1693 ND_PRINT("\t Extra flags: rsv(b5-7) 0x%x rsv(b13-31) 0x%x\n",
1694 ForCES_RS1(fhdr), ForCES_RS2(fhdr));
1695 }
1696 rc = forces_type_print(ndo, pptr, fhdr, mlen, tops);
1697 if (rc < 0) {
1698 goto invalid;
1699 }
1700
1701 if (ndo->ndo_vflag >= 4) {
1702 ND_PRINT("\n\t Raw ForCES message\n\t [");
1703 hex_print(ndo, "\n\t ", pptr, len);
1704 ND_PRINT("\n\t ]");
1705 }
1706 return;
1707 invalid:
1708 nd_print_invalid(ndo);
1709 }
[mirror] the TCPdump network dissector